diff --git a/ci/requirements/maximum-tests.yml b/ci/requirements/maximum-tests.yml
index efcec10e3..e11f188a2 100644
--- a/ci/requirements/maximum-tests.yml
+++ b/ci/requirements/maximum-tests.yml
@@ -15,8 +15,8 @@ dependencies:
   - matplotlib-base
   - nc-time-axis >=1.4.0
   - netcdf4
-  - numba >=0.57
-  - numpy >=2.0.0
+  - numba
+  - numpy
   - pandas >=2.0
   - pooch >=1.8.0
   - pytest >=8.0.0
@@ -24,7 +24,7 @@ dependencies:
   - pytest-lazy-fixtures >=1.0.5
   - pytest-timeout
   - pytest-xdist
-  - xarray >=2023.4.0
+  - xarray >=2023.4.0,<2025.3.0
   - xclim >=0.52.0
   - xesmf
   - xrft
diff --git a/ci/requirements/minimum-tests.yml b/ci/requirements/minimum-tests.yml
index d5fcbc679..2dc0ccb35 100644
--- a/ci/requirements/minimum-tests.yml
+++ b/ci/requirements/minimum-tests.yml
@@ -9,7 +9,7 @@ dependencies:
   - dask-core >=2023.4.0
   - h5netcdf
   - netcdf4
-  - numpy >=2.0.0
+  - numpy
   - pandas >=2.0
   - pooch >=1.8.0
   - pytest >=8.0.0
@@ -17,5 +17,5 @@ dependencies:
   - pytest-lazy-fixtures >=1.0.5
   - pytest-timeout
   - pytest-xdist
-  - xarray >=2023.4.0
+  - xarray >=2023.4.0,<2025.3.0
   - xskillscore >=0.0.27
diff --git a/pyproject.toml b/pyproject.toml
index 0e9ddf9d8..f7ae95f89 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,11 +38,11 @@ dependencies = [
   "cf_xarray >=0.8.0",
   "cftime >=1.6.3",
   "dask >=2023.4.0",
-  "numpy >=2.0.0",
+  "numpy",
   "packaging >=23.0",
   "pandas >=2.0",
   "pooch >=1.8.0",
-  "xarray >=2023.4.0",
+  "xarray >=2023.4.0,<2025.3.0",
   "xskillscore >=0.0.27"
 ]
 dynamic = ["version", "description"]